How do you justify that 8051 is an 8-bit microcontroller?

Answer 1

The only tow ways are

1- You are experienced with the microcontroller family so you can say witch one is 8 or 16 bit from their manufacturer number.

2- Look in the datasheet of the components. Always in the CPU or core description.

Think that may help

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Answer 2

The 8085 is called an 8 bit microprocessor because the accumulator is 8 bits in size. This means that the primary data size is 8 bits. This is true even though the address bus, certain registers, and certain register operations are 16 bits in size.

Answer 3

The 8051 is an 8-bit microcontroller because Intel says it is.

It has 8 bit registers, an 8 bit accumulator, and an 8 bit arithmetic/logic unit. As a result, it can handle 8 bit arithmetic and logic.

Just because it has a 16 bit address bus, it is not a 16 bit microcontroller.

Answer 4

Micro controller is 8- bit or 16- bit on basis of alu of micro controller speed of data execution if it performs 8 bit per sec then it called 8-bit controller and so on....

Answer 5

Because it can hold only 8 bit data in Accumulator(which is an 8-bit register). However we can store the data of more than 8 bits but still it can easily handle only 8 bit data..